[This section was also part of the original document; it was split to keep the information more focused - Ed.]

Prescription and Over-the-Counter (OTC) Drugs
FDA is responsible for determining the marketing status (prescription or over-the counter) of animal drug products based on whether or not it is possible to prepare adequate directions for use under which a layperson can use the drugs safely and effectively. Products for which adequate directions for lay use can be written must be labeled for over-the-counter (OTC) use under existing law. If adequate directions cannot be written, the prescription (RX) system provides a method of distribution and control which is intended to assure that the RX product reaches only the hands of persons trained to use the product. This can include, in addition to the veterinarian, animal owners or managers whom the veterinarian has determined are capable of using the product safely under the practitioner's supervision. Safe use includes safety to the animal, safety of food products derived from the animal, safety to the person administering the drug, safety to persons associated with the animal, and safety in terms of the drugs impact on the environment. Effective use of a drug product assumes that an accurate diagnosis can be made with a reasonable degree of certainty, that the drug can be properly administered, and that the course of the disease can be followed so that the success or lack of success of the product can be observed. The same drug substances can be marketed in a number of different dosage forms, intended for use by varying routes of administration, and in varying species of animals. Thus, these drug products may be labeled RX in some cases and OTC in others. Prescription products must be labeled as follows: Caution: Federal law restricts this drug to use by or on the order of a licensed veterinarian. Since adequate directions for safe and effective lay use cannot be written for veterinary prescription drug products, such products can only be sold to or on the prescription or other order of a licensed veterinarian. Sale of a veterinary prescription drug product to a layperson, except on a prescription or on order of a licensed practitioner, causes the product to be misbranded, and subjects the seller to civil and/or criminal provisions of the Federal Food, Drug, and Cosmetic Act. A licensed veterinarian may legally use or dispense a veterinary prescription drug product only within the course of his/her professional practice where a valid veterinarian-client-patient relationship exists. Veterinarians employed by drug manufacturers or distributors may not legally dispense prescription drug products to laypersons unless they meet the above criteria. Similarly, practicing veterinarians or their employees may not legally sell veterinary prescription drug products to walk-in customers unless a valid veterinarian-client-patient relationship exists. Attached is a list of the drugs that are currently approved for use in horses. It includes the active ingredients and brand names of the drugs, and indicates whether the product may be sold over-the-counter (OTC) or by prescription (RX). This is not intended to be a complete list of active ingredients or brand names available on the market. The brand names are used as examples only and their listing in no way implies any product endorsement by the Food and Drug Administration. This listing is not intended to serve as an official reference for firms or individuals dealing with the Agency.

DRUGS APPROVED FOR HORSES
ACTIVE INGREDIENTS / BRAND NAMES
INJECTABLE USE

Acepromazine Maleate
Prom Ace Injectable (RX)
Promazine Injectable (RX)
Alfaprostol
Alfavet (RX)
Altrenogest
Regu-Mate Solution (RX)
Aminopromazine Fumerate
Jenatone Solution (RX)
Ampicillin Sodium
Amp-Equine (RX)
Benzathine Penicillin G
Benza-Pen (R/O)
Procaine Penicillin G
Bicillin Fortified (RX)
Depo Pen (R/O)
Longicil Fortified (RX)
Flo-Cillin/Dura-Biotic (R/O)
Betamethasone Acetate
Betavet Soluspan Betamethasone Disodium Suspension (RX) Phosphate
Betamethasone Dipropionate
Betasone Aqueous Betamethasone Sodium Suspension (RX) Phosphate
Boldenone Undecylenate
Equipoise (RX)
Butorphanol Tartrate
Torbugesic (RX)
Ceftiofur Sodium
Naxcel Inj. (RX)
Chloral Hydrate
Chloropent (RX) Magnesium Sulfate Pentobarbital
Detomidine Hydrochloride
Dormosedan (RX)
Dexamethasone
Azium Aqueous Suspension (RX)
Azium Solution (RX)
Dexachel (RX)
Dex-A-Vet (RX)
Dexamethasone Injection (RX)
Dexamethasone Solution (RX)
Zonometh Solution (RX)
Dexamethasone Phosphate
Dexamethasone Injection (RX)
Dexamethasone Sodium Dex-A-Vet Injection (RX) Phosphate
Dexamethasone Injection (RX)
Dexamethasone-Voren Suspension (RX) -Isonicotinate
Dihydrostreptomycin Sulfate
Dihydrostreptomcycin (RX)
Pfizer-Strep (RX)
Dinoprost Tromethamine
Lutalyse Sterile Solution (RX)
Prostin F2 Alpha (RX)
Doxapram Hydrochloride
Dopram-V Injectable (RX)
Doxylamine Succinate
A-H Injection (RX)
Epinephrine Lidocaine HCl with Epinephrine (RX) Lidocaine Hydrochloride
Flumethasone
Anaprime (RX)
Flucort Solution (RX)
Flunixin Meglumine
Banamine Solution (RX)
Flunixin Meglumine Inj. (RX)
Flunixin Meglumine Solution (RX)
Flunixin Injection (RX)
Fluprostenol Sodium
Equimate (RX)
Follicle Stimulating Hormone F.S.H.-P Injectable (RX)
Furosemide
Disal 5% Injection (RX)
Furosemide Injection (RX)
Lasix Injectable Solution (RX)
Furos-A-Vet Inj. (RX)
Guaifensin
Guailaxin (RX)
Gecolate Injection (RX)
Glycodex Injection (RX)
Hyaluronate Sodium
Equron (RX)
Hyalovet (RX)
Synacid (RX)
Hyaluronic Acid
Hyvisc (RX)
Hyalovet (RX)
Imidocarb Diproprionate
Imizole Equine Inj. (RX)
Isoflupredone Acetate
Predef 2X (RX)
Ivermectin
Eqvalan Injection (RX)
Ketoprofen
Ketofen (RX)
Luprostiol Sodium
Equestrolin (RX)
Mepivacaine Hydrochloride
Mepivacaine Hcl Inj. (RX)
Meclofenamic Acid
Arquel (RX)
Methocarbamol
Robaxin-V Injectable (RX)
Methylprednisolone Acetate
Depo-Medrol (RX)
Methylprednisolone Acetate Inj. (RX)
Naproxen Equiproxin 10% Solution (RX)
Neostigmine Methylsulfate
Stiglyn 1-500 (RX)
Oleate Sodium
Osteum Solution 50 mg (RX)
Orgotein
Palosein (RX)
Oxytocin
Oxytocin Injection (RX)
Xytocin Inject. (RX)
Penicillin G Benzathine
Combicillin, Combicillin-AG (R/O)
Penicillin G Procaine
Penicillin G Procaine
Pro-Pen G in Aqueous Susp. (R/O)
Pentazocine Lactate
Talwin-V (RX)
Phenylbutazone
Bizolin Injection 20%(RX)
Butazolidin Injectable (RX)
Equi Bute Injection (RX)
Equiphen (RX)
Phen-Buta-Vet Inj. (RX)
Phenylbutazone Inj. (RX)
Robizone Injectable 20% (RX)
Tevcodyne Injectable (RX)
Therazone Inj. (RX)
Pituitary Luteinizing P.L.H. Injectable (RX) Hormone
Polysulfated Glycosamino-Adequan Injectable (RX) glycan
Pralidoxime Chloride
Protopam (RX)
Prednisolone
Ramosone (RX)
Prednisolone Acetate
Meticortelone Susp. (RX)
Prednisolone Sodium Prednisolone Inj. (RX) Succinate
Solu-Delta Cortef (RX)
Prednisolone Tertiary Hydeltrone-TBA Butylacetate Suspension (RX)
Prednisone
Meticorten (RX)
Procaine Penicillin G
Crysticillin 300 A.
S. Veterinary (R/O)
Crystaline Pro Penicillin G (RX)
Microcillin-Ag (OTC)
Procaine Penicillin G (OTC)
Penicillin G Procaine (OTC)
Promazine Hydrochloride
Promazine Injectable (RX)
Sparine Injection (RX)
Tranquazine Injection (RX)
Prostalene
Synchrocept Solution (RX)
Pyrilamine Maleate
Histavet-P (RX)
Pyrilamine Maleate Injection (RX)
Sodium Hyaluronate
Equron (RX)
Hylortin V (RX)
Hyvisc (RX)
Legend (RX)
Sodium Pentobarbital
Somnopentyl Injection (RX)
Sodium Selenite
E-SE (RX) Vitamin E
Sodium Thiamylal
Anestatal Inj. (RX)
Sodium Thiamylal Injection (RX)
Surital (RX)
Stanozolol
Winstrol-V (RX)
Sulfadiazine Di-Trim 48% Inj. (RX) Trimethoprim
Tribrissen 48% Inj. (RX)
Sulfadimethoxine
Agribon Inj. 40% (R/O)
Tetracycline
Tetracycline Inj. (RX)
Thialbarbitone Sodium
Kemithal L.A. (RX)
Ticarcillin Disodium
Ticillin (RX)
Tolazine Hydrochloride
Tolazine Injection (RX)
Triamcinolone Acetonide
Triamcinolone Susp. (RX)
Vetalog Inj. (RX)
Triflupromazine Vetame Inj. (RX) Hydrochloride
Tripelennamine Hydro-Re-covr Injectable (RX) chloride
Xylazine Hydrochloride
Anased (RX)
Chanizine Inj. (RX)
Rompun Injectable (RX)
Sedazine (RX)
ORAL USE
Altrenogest
Regu-Mate (RX)
Cambendazole
Camvet Horse Wormer Paste 45% (OTC)
Camvet Horse Wormer Pellets (OTC)
Camvet Suspension Horse Wormer (RX)
Chlorhexidine
Nolvasan Tabs/Suspension (OTC) Dihydrochloride
Chlortetracycline
Chlorachel Premixes (OTC) Calcium Complex
Chlorachel-100 (OTC)
Clenbuterol Hydrochloride
Ventipulmin Syrup (RX)
Dexamethasone
Azium Boluses (RX)
Azium Oral Solution (RX)
Azium Powder (RX)
Dichlorvos
Equigard (OTC)
Dithiazanine Iodide
Dizan Suspension with Piperazine Citrate Piperazine (OTC)
Doxylamine Succinate
A-H Tablets (RX)
Febantel
Rintal Paste (OTC)
Rintal Suspension (OTC)
Fenbendazole
Panacur Suspension 10% (OTC)
Safe-Guard Panacur (OTC)
Safe-Guard Panacur Paste (OTC)
Flunixin Meglumine
Banamine Granules (RX)
Banamine Paste (RX)
Griseofulvin
Fulvicin U/F Bolus Veterinary (RX)
Fulvicin U/F Powder (RX)
Iodochlorhydroxyquin
Rheaform Bolus (RX)
Ivermectin
Eqvalan (RX)
Eqvalan Paste 1.8% (OTC)
Levamisole Hydrochloride
Ripercol L-Piperazine (RX) Piperazine Dihydrochloride
Ripercol L-Piperazine Sol. (RX)
Mebendazole
Telmin Oral Susp.(RX)
Telmin Equine Wormer (RX)
Telmin Syringe Formula (OTC)
Mebendazole
Telmin B (RX) Trichlorfon
Telmin-B Paste (OTC)
Meclofenamic Acid
Arquel (RX)
Moxidectin
Quest Oral Gel (OTC)
Naproxen
Equiproxen Granules (RX)
Neomycin Sulfate
Biosol Soluble Powder (OTC)
Oxfendazole
Benzelmin/Syanthic Powder (R/O)
Benzelmin/Synanthic Horse Wormer Pellets (R/O)
Benzelmin/Syanthic Paste (R/O)
Benzelmin/Syanthic Susp. (R/O)
Oxfendazole
Benzelmin Plus Paste (OTC) Trichlorfon
Oxibendazole
Anthelcide EQ Paste (OTC)
Anthelcide EQ Suspension (RX)
Phenothiazine
Parvex Plus (RX) Piperazine-Carbon Disulfide
Phenothiazine
Dyrex T.F.(RX) Piperazine Dihydrochloride Trichlorfon
Phenylbutazone
Bizolin Tabs/Boluses (RX)
Butatron Gel (RX)
Butazolidin Granules (RX)
Butazolidin Bolus (RX)
Butazolidin Paste (RX)
Equi Bute Tablets (RX)
Equiphen Paste (RX)
Equipalazone (RX)
Phen-Buta-Vet Tablets (RX)
Phenylbutazone Tablets (RX)
Robizone-V (RX)
Tevcodyne (RX)
Therazone Tablets (RX)
Piperazine Adipate
Piperazine Adipate 100% (OTC)
Piperazine Carbon Disulfide
Parvex Bolus (OTC)
Parvex Suspension (RX)
Promazine Hydrochloride
Promazine Granules (RX)
Pyrantel Pamoate
Banminth-P Paste (OTC)
Strongid T (R/O)
Pyrantel Tartrate
Banminth (5.66 gm)(OTC)
Pyrantel Tartrate Premix (OTC)
Purina Horse & Colt Wormer Med (OTC)
Strongid C (OTC)
Sodium Sulfamethazine
Sulmet (OTC)
Stanozolol
Winstrol-V (RX)
SulfadiazineDI-Trim 400 Paste (RX) Trimethoprim
Tribrissen 400 Oral Paste (RX)
Uniprim Powder (RX)
Thiabendazole
Equizole A Packets (RX)
Equizole Horse Wormer (RX)
Equizole 50% Horse Wormer Paste (OTC)
Equizole Wormer Pellets (OTC)
Purina Horse Wormer Medicated (OTC)
Thibenzole 300 Medicated (OTC)
Thiabendazole
Equizole A (RX) Piperazine Phosphate
Thiabendazole
Equizole A Liquid (RX) Piperazine Citrate
Thiabendazole
Equizole B (RX) Trichlorfon
Tioxidazole
Tiox Granules (OTC)
Tiox Paste (OTC)
Triamcinolone Acetonide
Vetalog Oral Powder (RX)
Trichlorfon
Dyrex Cap-
Tab 200 (RX)
Purina Bot Control (OTC)
Triflupromazine Vetame Tablets (OTC) Hydrochloride
TOPICAL USE
Balsam Peru Oil
Trypzyme Aerosol (OTC) Trypsin
Chlorhexidine Diacetate
Nolvasan Germicidal Ointment (OTC)
Copper Naphthenate
Kopertox (OTC)
Thrush-XX (OTC)
Cuprimyxin
Unitop Topical 0.5% Cream (RX)
Dimethyl Sulfoxide
Domoso Gel (RX)
Domoso Sol. (RX)
Furazolidone
Furall Aerosol Powder (OTC)
Topazone Aerosol Powder (OTC)
Hydrocortisone Acetate
Kymar Ointment (RX) Neomycin Palmitate Trysin-
Chymotrypsin
Isoflupredone Neo Predef Eye-Ear-Topical Neomycin Sulfate Ointment (RX)
Isoflupredone Acetate
Tritop Ointment (RX) Tetracaine HydrochlorideNeomycin Sulfate
Nitrofurazone
Fura Ointment (OTC)
Fura-Septin (OTC)
Nitrofurazone Powder (OTC)
Nitrofurazone Ointment (OTC)
Nitrofurazone Dressing (OTC)
NFZ Dressing (OTC)
NFZ Wound Powder (OTC)
Nitrofurantoin
Dantafur (RX)
Oxytetracycline Hydro-Terramycin Ophthalmic Ointment (OTC) chloride Polymyxin B
Sulfate
INHALATION USE
Halothane
Fluothane (RX)
Isoflurane
Aerrane (RX)
Isoflurane, USP (RX)
Isoflo (RX)
INTRAUTERINE USE
Amikacin Sulfate
Amiglyde-V (RX)
Amikacin Intrauterine (RX)
Chlorhexidine Nolvasan Effervescent Uterine (OTC) Dihydrochloride
Gentamicin Sulfate
Gentocin Solution (RX)
Gentamicin Intrauterine (RX)
Gentamicin Sulfate Solution (RX)
Gentamex 100 Intrauterine (RX)
Gentaglyde Sol. (RX)
Sulfamethazine Sulmet Oblets (OTC)